Kinematical properties of structured CMEs seen by the MICA and LASCO coronagraphs

LEONARDO DI LORENZO; BALMACEDA, LAURA; CREMADES, HEBE

Foz do Iguazu

Congreso; 2010 AGU Meeting of the Americas; 2010

American Geophysical Union

We present a combined analysis of the kinematics of structured CMEs at distances from 1.05 up to 30 solar radii. Data from the ground-based MICA (Mirror Coronagraph for Argentina) in the green line (530.3 nm) allows us to study the acceleration phase of the events exceptionally close to the solar limb. On the other hand, white-light data from the SOHO/LASCO C2 and C3 coronagraphs are used to follow their evolution at larger distances from the Sun. The three parts of the CMEs: leading edge, cavity and core are identified and followed separately in order to compare their individual kinematic properties. The temporal evolution of geometrical and morphological characteristics of the distinct structures is also determined.